baber/WOPTO huggingface dataset:
Patent GB-1152795-A (GB)
Title: Method and apparatus for making Hollow Articles of Organic Plastics Material
Inventor: VALYI EMERY IMRE
IPC: B29C49/48
Filed: 1967-04-13
Abstract: 1,152,795. Injection-blow-moulding. E. I. VALYI. 13 April, 1967 [27 April, 1966], No. 17054/67. Heading B5A. In an injection-blow-moulding process, plastics is injected from a central opening 15 to a plurality of parison dies 11 equally spaced around it, the blow core 20 being transferred with parisons thereon to a blow mould having a plurality of cavities 32, the blow mould comprising a central part 30 and separable outer parts 31, the parting line extending diametrically through the cavities. The central part is also preferably movable normally to the direction of movement of the outer moved parts. There may be at least four cavities in both injection and blow moulds, e.g. two on each side of a centre line, parallel to the parting line. Other embodiments (Figs. 5, 6, not shown) have six and eight cavities respectively in both injection and blow moulds.
Patent GB-1113310-A (GB)
Title: Hydraulically operated portable shears for cutting wire,rods and the like
Inventor: MINOW KLAUS
IPC: B26B17/02
Filed: 1966-04-19
Abstract: 1,113,310. Shearing. STAHL-UND WALZWERK BRANDENBERG (HAVEL) VEB. 19 April, 1966, No. 17098/66. Heading B3W. An hydraulically-operated portable rod cutter comprises a single-acting spring-returned reciprocating shear 4 connected by flexible piping to a portable hydraulic pump unit 1. There is an hydraulic intensifier 3 between the unit and the shear and the flow of pressure fluid to the intensifier is controlled by electro-magnetically operated valves 2 connected electrically to a push-button on the shear. Fluid lost from the shear cylinder circuit is automatically replaced via a check valve in the intensifier piston.
Patent GB-497373-A (GB)
Title: Improvements in the preparation of filters for the production of plane polarised light
IPC: G02B5/30
Filed: 1937-06-19
Abstract: 497,373. Polarizing-apparatus. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) June 19, 1937, No. 17117. [Class 97 (i)] Filters for producing plane polarized light are prepared by subjecting cellulose foils in the plastic state to a stretching process and colouring them with dyestuffs producing dichroism. The dyeing may be effected before or after colouring. Foils known under the Registered Trade Mark " Cellophane may be used, and the dyes may be Congo Red, Chicago Blue 6B, Diamine Brown M, or Indanthrene Blue S. Iodine may also be used. The foil may be dyed with a mixture of dyestuffs to make polarization possible in the whole range of visible light. Examples are given.
Patent GB-769854-A (GB)
Title: Improvements in or relating to the desulphuration of gases
IPC: C10K1/10
Filed: 1955-06-14
Abstract: 769,854. Purifying gases. ATELIERS PINGRIS & MOLLET-FONTAINE REUNIS, and GUINOT, H. M. June 14, 1955 [June 16, 1954; Sept. 13, 1954], No. 17147/55. Class 55 (2). Hydrogen sulphide is removed from gases by contacting the gases with an aqueous solution of at least one ferric salt of an organic acid, which salt is substantially stable to oxidation at room temperature, is substantially non-corrosive and which has a sufficiently high dissociation coefficient to prevent substantially the precipitation of iron sulphides. Iron salts of acetic acid are preferred, but salts of formic acid, propionic acid and butyric acid, soluble double oxalates and the salts of homologous dibasic acids may be used as well as mixtures of such salts, if desired with an excess of free acid to prevent precipitation of sulphide during the desulphurization stage. A process using ferric acetate is described. The aqueous solution thereof reacts with the hydrogen sulphide to produce acetic acid and ferrous acetate with sulphur in suspension which latter is rapidly deposited. This sulphur is soluble in carbon di-sulphide, so that it may be separated by mechanical and solvent means. The ferrous acetate solution is oxidized by agitation in oxygen at normal temperature and pressure. Addition of small quantities of manganese acetate, e.g. 1 mol. of manganese to 100 mols. of iron, accelerates the oxidation. Acetates of copper, cobalt and cerium may also be used. The oxidation of the ferrous salt in the cold does not affect adversely the sulphur already present in the liquid, and it is therefore possible to allow the sulphur to accumulate in the liquid in circulation and to treat continuously only a small fraction of the liquid for the elimination of the sulphur. Some of the sulphur may be deposited in a reservoir tank, and a heavy solvent, e.g. carbon disulphide, may be at the bottom of the tank, the solvent being withdrawn continuously for distillation and return to the tank. The operations of desulphurization and oxidation may be performed at the same or different pressures, or they may be performed simultaneously in a common space, in which case both the gas to be purified and molecular oxygen are introduced to the space.
Patent GB-163607-A (GB)
Title: Improvements in trousers presses
IPC: A47G25/72
Filed: 1920-06-24
Abstract: 163,607. Vickers, F. E. June 24, 1920. Trouser-presses.-In a trouser-press with a baseboard a and hinged side boards b, additional longitudinal flaps f are provided shorter than the boards b, so that first one trouser leg can be laid and covered, and then the other, without the legs being in contact. A layer of fabric d may be used to cover the press when it is put under a weight-producing medium such as a mattress. Light materials, such as cardboard or ply wood, are used to make the press, which is hinged transversely for packing.
Patent GB-294930-A (GB)
Title: Improvements in or relating to grinding apparatus
IPC: A47J42/16
Filed: 1928-06-13
Abstract: 294,930. Hobart Manufacturing Co., (Assignees of Johnston, H. L.). Aug. 1, 1927, [Convention date]. Guards.-In a grinding-machine for coffee and other materials, the discharge orifice in the casing is provided with a closure-member adapted to be actuated upon an initial grinding action and maintained open during the grinding operation. The casing 20, Fig. 1, of the mill is attached to a casing 11 and is provided with a hopper 13. One grinding-disc 33 is attached to a boss 31 slidable longitudinally on the motor shaft 30, the other disc 34 being secured to a sleeve 51 rotatable in the casing and provided with a stop 55 working in a slot 56 in the casing under the control of a spring 58. The sleeve is provided with an opening 60 which registers with the outlet orifice 61 in the casing when the machine is in operation, due to the disc 34 being revolved frictionally to the extent of the length of the slot 56. The opening 60 is provided with an extension 70, Fig. 3, which enables the coffee to be discharged when the frictional drag is insufficient to maintain the opening 60 and orifice 61 in alignment.
Patent GB-484862-A (GB)
Title: Manufacture of dehydrogenation products from heterocyclic bases and application thereof
IPC: C07D233/56
Filed: 1937-06-21
Abstract: An imidazoline which may contain as a substituent or substituents not more than two aromatic nuclei is dehydrogenated by treatment at a raised temperature with a dehydrogenation catalyst or a hydrogen acceptor.  Imidazolines specified are 2-methyl-, 2-ethoxymethyl-, 2-undecyl- or 2-heptadecyl-imidazoline, those obtained according to Specification 460,528 such as 2-benzylimidazoline, 2-(21-hydroxyphenyl)imidazoline, 2 - [g  - (21 - methoxy - 61 - allylphenoxy)-propyl]-imidazoline, the 8-quinoline ether of 2-methylol-imidazoline, 2- (31.41. 51-trimethoxybenzyl)-imidazoline or 2-phenyl-5-methyl-imidazoline, and those obtained from heterocyclic carboxylic acids and 1.2-alkylene diamines of the formula <FORM:0484862/IV/1> where X is an alkyl group with more than 2 carbon atoms or aralkyl or aryl, and Y is hydrogen, or X and Y are the same or different alkyl, aralkyl or aryl groups.  Hydrogen acceptors specified are sulphur, selenium, copper oxide, bromine, cyclohexanone, naphthalene or cinnamic acid ester.  When using a dehydrogenation catalyst, e.g. finely divided nickel, iron, platinum, palladium, copper or silver, a dispersing agent or a diluent and a hydrogen acceptor may be employed, at ordinary or diminished pressure.  A preferred temperature range for the dehydrogenation is 150 to 250 DEG  C., sometimes 280 DEG  C.  The imidazoles of low molecular weight may be used for the preparation of medicaments, and those having an aliphatic chain of at least 6-carbon atoms or their salts or sulphonic acids have strong capillary active properties in dilute aqueous solution, and may be used in the textile industry as wetting, washing, cleaning, levelling, emulsifying, softening, or water-resisting agents.  In examples, (1) 2-methyl-imidazoline is heated with finely-divided nickel to 170-200 DEG  C. to give 2-methyl-imidazole; (2) 2-undecyl-imidazoline is heated with nickel to 170-220 DEG  C. to give 2-undecyl-imidazole; the nickel may be replaced by sulphur or selenium; (3) 2-heptadecyl-imidazoline is heated with nickel to 180-240 DEG  C. to give 2-heptadecylimidazole; a further example describes the dyeing of cotton with Chlorantine Red 8BN, the goods being treated after dyeing with a dilute solution of the product of (3).  The Specification as open to inspection under Sect. 91 refers to the dehydrogenation of hydropyrimidines, and, in an example, describes heating 2-methylpyrimidine-tetrahydride with finely-divided nickel to give 2-methylpyrimidine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-190090-A (GB)
Title: Improvements relating to gas cooking ovens
IPC: F24C15/00
Filed: 1922-06-22
Abstract: 190,090. Radiation, Ltd., Yates, H. J., Harvey, F., Davies, H., Wilson, W. A., and Hartley, H. June 22, 1922. Gas cooking-stoves; draught, regulating; outlets to chimneys.-The waste gas outlet d of a gas cooking oven is arranged at or near the bottom of the oven, and adjacent to it, or in the flue f at or near the outlet level, is an air admission aperture g by which the suction of the flue on the gases is diminished in order to cause a slow circulation through the oven; the aperture g being at the same time arranged so as not to interfere with the correct discharge cf the gases through the flue. In the stove shown the air aperture g is in the underside of the flue connection e, and the gas burner c is arranged along the lower edge of the back of the oven.
Patent GB-477155-A (GB)
Title: Improvements in and relating to the construction of straw and felt hats
IPC: A42C1/04
Filed: 1936-06-22
Abstract: 477,155. Blocking hats. WEBB, V. W. June 22, 1936, No. 17290. [Class 63] A hat-blocking apparatus comprises complementary male and female blocks g and a respectively provided with substantially vertical faces k and c between which the marginal portion A of the brim d is supported during the blocking. A sharp edge at the join of the face c and the brim forming surface, forms a crease in the brim about which the brim margin is subsequently folded. An outer marginal portion B of the brim is formed by being drawn over the lower face of a vee or other suitably shaped groove e and is held in place by a loop of string f. The mark made by the string serves as a convenient guide for the trimming operation. After blocking, the marginal portion B is folded under the portion A, after which both portions are folded inwards together and are stitched down to the body of the brim.
Patent GB-849295-A (GB)
Title: Apparatus for measuring the relative phase of two alternating potentials of the samefrequency
IPC: G01R25/00
Filed: 1958-05-30
Abstract: 849,295. Phase detection. BENDIX AVIATION CORPORATION. May 30, 1958 [June 12, 1957], No. 17364/58. Class 40(5). In an arrangement for measuring the phase difference between two signals of identical frequency such as would be produced by sound or other waves impinging on a pair of transducers 10, 10<SP>1</SP> in an arrangement for measuring the angle of approach of such waves, the signals are alternatively applied, by a switch 14 having an operating rate less than the frequency of the signals, to a frequency-discriminator 16 to produce from the frequency excursions at switching an alternating current the amplitude of which is indicative of the phase difference. The direction of the phase difference may be indicated by a centre zero meter such as 18 the coils of which are energized through the segments of a commutator 17 driven in synchronism with switch 14. Amplification of the phase difference may be introduced by the transformer arrangement 11 or by an alternative arrangement described with reference to Fig. 5 (not shown), an explanation of the amplification being described with reference to vector diagrams, Figs. 3, 4, 6, 7 (not shown). The replacement of switch 14 by a circular potentiometer having the signals applied at diametrically opposite points is also suggested.
Patent GB-1288352-A (GB)
IPC: F16L37/34
Filed: 1971-05-27
Abstract: 1288352 Hose or pipe couplings CARL KURT WALTHER 27 May 1971 [11 June 1970] 17423/71 Heading F2G In a hose or pipe coupling, the male and female parts 2, 1 are drawn together when a pivoted bail 16 is swung over the coupling to rotate discs 15 mounted on pivots 14 on the female part 1 so that rollers 18 on the male part 2 traverse a slot 17 in the discs 15, eccentric with respect to the pivot 14, a seal 12 effectively sealing the coupling before the male part 2 contacts and opens a self-closing valve 7 in the female part 1. The upper half of Fig. 1 shows the disposition of the parts prior to coupling, with the rollers 18 entering the slots 17 through side openings 19, and the lower half shows the coupling fully engaged wherein the valve 7 and a further valve 10 in the male part 2 are open. As shown, the valve in the female part 1 comprises a fixed core 4 mounted on a transverse web 3 and a seating sleeve 5 urged by a spring 6 to close the valve until the male part 2 enters the part 1. The valve in the male part comprises a spring-urged central core 10 which unseats from an internal flange portion of the male part 2 upon contact with the fixed core 4 of the other valve. As shown in Fig. 2 the rollers 18 roll on the inside surface of the arcuate slot 17 coming to rest in an enlarged end portion 20 of the slot. A second slot 21 may have detent portions 24, Fig. 1, into which a locking ball 23, Fig. 2, is urged by a spring in a sleeve 22 fixed in a mounting plate 13.
Patent GB-990974-A (GB)
Title: Water-soluble dyes containing halopyrimidyl-oxymethyl groups
Inventor: ISCHER HANS
IPC: C09B62/245
Filed: 1961-05-12
Abstract: 3 - Amino - 1 - (dichloropyrimidyloxymethyl)-benzene is prepared by condensing 3-aminobenzyl alcohol with 2,4,6-trichloropyrimidine.  5 - Amino - 4 - chloro - benzyl alcohol is prepared by reacting 2-chloro-nitrobenzene with 1,11-dichlorodimethyl ether, hydrolysing the chloromethyl group and reducing the nitro group.  3 - (41 - Aminophenylsulphonylamino) - benzyl alcohol is prepared by condensing 3-aminobenzyl alcohol with 4-acetylamino-benzenesulphonyl chloride and hydrolysing the 3-(41-acetylaminophenylsulphonylamino) - benzyl alcohol obtained.  3 - (41 - or 31 - aminobenzoylamino) - benzyl alcohol is prepared by condensing 3-aminobenzyl alcohol with 3- or 4-nitrobenzoyl chloride and reducing the nitro group.  2 - Hydroxy - naphthalene - 6 - sulphonic acid-(31 - hydromethyl) - phenylamide is prepared by condensing 2 - benzenesulphonyloxy - naphthalene - 6 - sulphonic acid chloride with 3-aminobenzyl alcohol and saponifying the benzenesulphonyloxy group.ALSO:The invention comprises dyes of formula <FORM:0990974/C4-C5/1> wherein F is the radical of water-soluble dye or of a water-soluble coupling component, Y is -N=N-, -NH-, -SO2NH- or -CONH-when F is the radical of a water-soluble dye, or -N=N- only when F is the radical of a water-soluble coupling component and Z is the radical, remaining after reaction with the hydroxyl group, of 2,4-dihalo-, 2,4-dihalo-6-methyl-, 2,4,5- or 2,4,6-trihalo-, 2,4,5- trihalo-6-methyl-, 2,4,6-trihalo-5-methyl-, -5-chlorovinyl-or -5-carboxymethyl- or 2,4,5,6-tetrahalo-pyrimidine and in which the nucleus A may be further substituted and the radical -CH2-O-Z is in ortho- or preferably meta-position to Y. The dyes are prepared by reacting an amine of formula <FORM:0990974/C4-C5/2> wherein X is a hydrogen atom or a radical Z as defined above, with a water-soluble dye or a diazo or coupling component, containing an exchangeable halogen atom, a sulphonic acid halide or carboxylic acid halide group and when X is hydrogen condensing the product with an appropriate halopyrimidine.  The azo dye intermediate may be converted into an azo dye by the usual processes.  The amine may be also diazotized and coupled with a coupling component with further condensation to form the group -CH2-O-Z if necessary.  The dyes may be used to colour leather, natural and synthetic polyamide fibres and natural and regenerated cellulose fibres by the usual processes for reactive dyes.  In examples the preparation of dyes of the mono-, dis- and tris-azo, stilbeneazo, phthalocyanine and anthraquinone series is described.
Patent GB-745402-A (GB)
Title: Improvements in or relating to a process for the production of moulds and cores for foundry purposes
IPC: B22C1/16
Filed: 1953-06-24
Abstract: 745,402. Moulding processes. SCHMIDT, W., and PHILIPP, W. June 24, 1953 [July 9, 1952], No. 17530/53. Class 83 (1). Moulding sand is mixed with a binding agent formed by a silicate solution and a watersoluble, emulsifiable or saponifiable organic substance, such as sugar molasses, dextrin, starch, glycerin, glycol, formaldehyde urea resin, bitumen, and fatty acid, is added to the mixture, and the mixture is caused to harden by the introduction of carbon dioxide. The silicate solution may be a sodium or potassium waterglass. A number of specific examples of the carrying out of the process are quoted. Specification 654,817 is referred to.
Patent GB-1134296-A (GB)
Title: Process for improving the freeness of asbestos
Inventor: LIPSETT SOLOMON GEORGE
IPC: C04B20/10
Filed: 1967-04-17
Abstract: 1,134,296. Treating asbestos fibres. ASBESTOS CORP. Ltd. 17 April, 1967, No. 17552/67. Heading C1A. [Also in Division D1] The freeness of asbestos fibres is improved by treating them with an aqueous silica sol so that colloidal silica is deposited thereon in an amount expressed as SiO 2  of 2.5% by weight or less, and then drying them. The aqueous silica sol may be obtained by treating a sodium silicate aqueous solution with an inorganic acid, e.g. .phosphoric, sulphuric or hydrochloric acid, by re-dispersing silica precipitates, subjecting trixotropic agglomerates to shear forces, heating certain silica gels or passing a dilute sodium silicate solution through a bed of acidregenerated cation exchanger. Salts contained in the sols may be removed with ion exchange resins. The asbestos fibres may be treated by feeding them at a controlled rate into an enclosure in which they are maintained in suspension in air and spraying a controlled amount of aqueous silica sol on to the suspended fibres. Drying may be effected at 35-105‹ C.
Patent GB-649368-A (GB)
Title: Improvements in or relating to adjustable metal props
IPC: E21D15/15
Filed: 1948-06-30
Abstract: 649,368. Screw-and-nut gearing. VIGIER, W. A. DE. June 30, 1948. No. 17563. [Class 80(iii)] [Also in Groups X and XXV] Nuts, for use on telescopic struts of the kind in which rough length adjustment is obtained by pins passing through slots in one part and engaging a selected hole in the other the final adjustment being made by a nut on the outer part bearing against the pin, are provided with means for clearing dirt &c. from the threads of the outer part. The nuts are provided with lugs h having one or more teeth i to enter the threads. The face of the teeth may be square or inclined and more than one lug may be provided each having a portion of a mutilated thread.
Patent GB-595935-A (GB)
Title: Improvements in or relating to connector ends for flexible tubing
IPC: F16L33/34
Filed: 1945-07-10
Abstract: 595,935. Connectors for flexible tubing. GAS LIGHT & COKE CO., and AUSTEN, C. R. July 10, 1945, No. 17565. [Class 99 (i)] A connector end for flexible tubing consists of a sleeve 1 of rubber or like material with a metal fitting 5 permanently fixed in one end, the other portion 3 of the sleeve being such that its rigidity decreases as the distance from the metal piece increases, the said piece being separated by a shoulder 4 from the flexible tubing which is held in the sleeve by any suitable method. The variable rigidity of the end 3 of the sleeve may be attained by decreasing its thickness, as shown.
Patent GB-648485-A (GB)
Title: New plastic compositions, sheet materials made therefrom and processes for making such sheet materials
IPC: C08L23/34
Filed: 1948-06-30
Abstract: A calenderable composition comprises chlorosulphonated polyethylene and a polyoxyethylene glycol, preferably of molecular weight 300-4,000, in an amount between 2 and 5 per cent by weight of the chlorosulphonated polyethylene.  The compositions may also contain wood rosin, dilorol phosphate, hydroquinone monobenzyl ether, mercaptobenzothiazole, the zinc salt of xylyl mercaptide, benzothiazyl disulphide, sulphurized oil, fillers and pigments such as calcium carbonate, magnesium oxide and litharge. The compositions may be calendered on to fabric or formed into self-supporting films. The fabric prior to applying the calender coating may be coated with a composition applied by knife-coating and consisting of chlorosulphonated polyethylene, polymethyl methacrylate, hydroquinone monobenzyl ether, wood rosin, magnesium oxide, litharge, and mercaptobenzothiazole dissolved in toluene.  Compositions containing more than 5 per cent of polyoxyethylene glycol are stated to develop a cellular structure. Specifications 470,328 and 542,414 are referred to.